painles drip / Bit

　　When we are ill and need to injecting,we always full of feal when facing the thin and sharp
　　Syringe needle .The children usually cry and full of feal to the hospital adding the inexplicable feal to the beautifully childhood .The adult also full of feal to the syringe needle and shaming to show it because of the face .In winter,the blood vessel not easy to be found when nurse injecting for us.Especially the thin blood vessel people,not easy to injection and easy injection to once side.So we want to find a way to resolve this problem.